|  
Animated Message Create the illusion of animated messages on your 
normal C++ output screen.  This illusion will give the appearance that the code is being 
"pulled" from an imaginary "hole" in the screen one letter at a time.  These 
messages can "pull" 
out to the left or the right. Message pulling to the left: 
 // message left#include <iostream.h>
 #include<stdlib.h>
 #include "screen.h"
 #include "apstring.cpp"
 
 void banner_left(int length, int x, int y, apstring banner);
 
 int main(void)
 {
 system("CLS");
 apstring banner = "Computer Science 2 is great!"; 
// message for banner
 banner_left(banner.length(), 50, 10, banner);   
// function call
 return 0;
 }
 // message left function
 // function receives length of message, coordinates of hole, and message
 //string function returns nothing
 void banner_left(int length, int x, int y, apstring banner)
 {
 for (int i = 0; i < length; i++)
 {
 gotoxy(x-i,y);                
 // x and y are coordinates of the hole
 for(int j = 0; j <= i; 
j++)
 {
 cout<<banner[j];
 }
 delay(150);      
   // control the speed of the banner
 
 cout<<flush;
 
 }
 cout<<endl<<endl<<endl<<endl;
 
 return;
 }
   Message pulling to the right: 
 // message right#include <iostream.h>
 #include<stdlib.h>
 #include "screen.h"
 #include "apstring.cpp"
 
 void banner_right(int length, int x, int y, apstring banner);
 
 int main(void)
 {
 system("CLS");
 apstring banner = "Computer Science 2 is great!"; 
// message
 banner_right(banner.length(), 20, 10, banner);      
// function call
 return 0;
 }
 //message right function
 // function receives length of message, coordinates of hole, and 
message
 //string function returns nothing
 void banner_right(int length, int x, int y, apstring banner)
 {
 int k = 1;
 for (int i = 0; i < length; i++)
 {
 gotoxy(x,y);                     
// x and y are coordinates of the hole
 for(int j = length - k; j 
< length; j++)
 {
 cout<<banner[j];
 }
 k++;
 delay(150);         
// control the speed of the message
 
 cout<<flush;
 
 }
 cout<<endl<<endl<<endl<<endl;
 
 return;
 }
   |